破裂脑动脉瘤不同时机夹闭术后的颅内压监测研究.docx

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1、破裂脑动脉瘤不同时机夹闭术后的颅内压监测研究破裂脑动脉瘤不同时机夹闭术后的颅内压监测研究 许雅纹 方文华 蔡嘉伟 摘要目的 探討破裂脑动脉瘤不同时机夹闭术后患者的颅内压(ICP)变化特点。方法 回顾性分析20XX年10月20XX年9月我院收治的满足纳入和排除标准的49例成人破裂脑动脉瘤患者的临床资料,按照动脉瘤夹闭手术时间分为早期(发病3 d)手术组(26例)和延迟(发病421 d)手术组(23例),两组均在术后行持续ICP监测及以ICP为导向的综合治疗。比较、分析两组患者术后ICP变化特点及其临床意义。以随访12个月的死亡率和改良Rankin量表(mRS)评分评价两组患者的预后。结果 两组患

2、者的影像学特征方面、预后情况比较,差异无统计学意义(P0.05)。早期手术组患者术后ICP总体平均值为(15.213.71)mmHg,高于延迟手术组的(14.124.13)mmHg,差异有统计学意义(P0.05)。结论 发病3 d内早期手术的破裂脑动脉瘤患者术后总体ICP高于延迟手术组。早期手术和延迟手术术后ICP均呈先增高而后下降的趋势,早期手术最高峰在第5天,而延迟手术术后第2天最高。两种手术时机术后患者的ICP在经过治疗后均能够下降至较低水平。这一规律有助于破裂脑动脉瘤术后ICP增高临床诊疗策略的制定。 关键词脑动脉瘤;蛛网膜下腔出血;颅内压监测;预后 Abstract Objectiv

3、e To explore the characteristics of intracranial pressure (ICP) in patients after ruptured cerebral aneurysms clipped at different timing. Methods The clinical data of 49 adult patients with ruptured cerebral aneurysm in our hospital who met the inclusion and exclusion criteria from October 20XX to

4、September 20XX were retrospectively analyzed. They were divided into the early surgery ( 3 days after onset) group (26 cases) and delayed surgery (4-21 days after onset) group (23 cases) according to the timing of clipping. The continuous ICP monitoring and ICP-oriented comprehensive treatment were

5、performed after surgery in both groups. The characteristics and clinical significance of postoperative ICP of patients in two groups were compared and analyzed. The prognosis of the patients in two groups was evaluated by mortality and modified Rankin scale (mRS) score at 12-month follow-up. Results

6、 There were no significant differences in imaging characteristics and prognosis between the two groups of patients (P0.05). The total average postoperative ICP of patients in the early surgery group was (15.213.71) mmHg, which was higher than that in the delayed surgery group for (14.124.13) mmHg, a

7、nd the difference was statistically significant (P0.05). Conclusion The total postoperative ICP of patients with ruptured cerebral aneurysm who have been operated within 3 days after onset is higher than that of delayed surgery. The postoperative ICP of patients with either early or delayed surgery

8、shows a tendency of increasing first and decreasing then. The ICP reaches the peak on the fifth day after early surgery while that on the second day after delayed surgery. The ICP of patients after clipping at different timing can be reduced to a lower level after treatment. This feature may be help

9、ful for the clinical diagnosis and treatment of increased postoperative ICP in patients with ruptured cerebral aneurysm. Key words Cerebral aneurysm; Subarachnoid hemorrhage; Intracranial pressure monitoring; Prognosis 尽管针对破裂脑动脉瘤(cerebral aneurysm)及其导致的动脉瘤性蛛网膜下腔出血(aneurysmal subarachnoid hemorrhage,

10、aSAH)的诊疗技术已获得较大进步,但在全世界范围内其病死率和致残率仍然居高不下,其不良预后与全脑水肿、颅内压(intracranial pressure,ICP)增高、脑血管痉挛、迟发性脑梗死、全身系统并发症等因素密切相关1-2。由于医疗条件、水平和理念的差异,不同医院对破裂脑动脉瘤行夹闭或介入治疗的时机选择各不相同,其中对术后ICP增高、脑肿胀等继发脑损害和不良预后的疑虑则是影响手术时机判断的重要因素。有研究指出,aSAH患者存在ICP增高现象,ICP增高的控制是破裂脑动脉瘤临床治疗过程中的重要环节3。但对于破裂脑动脉瘤行开颅夹闭手术患者术后ICP变化的特点和规律则较少有文献,因此,本研究

11、旨在分析不同时机夹闭手术患者的ICP变化特点,为临床诊疗提供参考,现报道如下。 1资料与方法 1.1一般资料 选取20XX年10月20XX年9月我院共收治的467例自发性蛛网膜下腔出血患者,其中部分患者根据神经外科重症管理专家共识4行有创ICP监测,并从中进行研究对象的筛选,同时满足纳入和排除标准的患者49例,对其临床资料进行回顾性分析。纳入标准5:CT显示蛛网膜下腔出血,且CT血管造影术(CTA)或数字减影血管造影(digital subtraction angiography,DSA)确诊为脑动脉瘤;年龄18岁;Hunt-Hess分级级;经专业组讨论适合行开颅夹闭手术治疗;发病到手术时间2

12、1 d;持续有创ICP监测时间24 h。排除标准:未破裂脑动脉瘤;严重肝、肾衰竭或凝血功能障碍;患者及家属拒绝行夹闭手术或ICP传感器置入。按动脉瘤夹闭手术距离发病后的时间,将患者分为早期(发病3 d)手术组和延迟(发病421 d)手术组。早期手术组患者26例,平均年龄(56.8012.40)岁。延迟手术组患者23例,平均年龄(55.809.40)岁。两组患者年龄、性别、高血压、糖尿病、Hunt-Hess分级、改良Fisher分级、动脉瘤数量、术前脑积水等一般资料比较,差异无统计学意義(P0.05)(表1),具有可比性。本研究经我院医学伦理委员会审核及同意,患者及家属均知晓治疗情况并签署知情同

13、意书。 1.2方法 两组患者在入院前后均按照20XX年美国心脏协会/美国卒中协会(AHA/ASA)动脉瘤性蛛网膜下腔出血处理指南5进行诊疗。在术前准备完善并经全科讨论符合夹闭手术条件,行经翼点锁孔入路开颅,显微镜下确认破裂责任动脉瘤并予夹闭,清除可见血肿。置入ICP传感器(Codman,USA):伴有脑积水或脑室内出血患者选择脑室型置于侧脑室内,其余患者选择脑实质型置于同侧额叶皮层下2 cm处。术后给予神经重症监护,每个患者每天至少进行3次临床评估包括格拉斯哥昏迷量表(GCS)评分、Ramsay镇静评分、神经功能障碍程度评估等。术后24 h内常规复查头颅CT,1周内复查头颇CTA或DSA,病情

14、变化或ICP持续增高时随时复查头颅CT或CTA以明确颅内情况等。术后行持续ICP监测,并采取以ICP监测为导向的综合治疗策略。ICP控制措施采用阶梯式方案,包括抬高床头、维持正常体温、镇静、镇痛、呼吸道管理、脱水药物(甘露醇、速尿)、渗透压治疗(维持血浆渗透压300320 mOsm/L)、轻度过度通气动脉二氧化碳分压(PaCO2)3035 mmHg等。 1.3观察指标及评价标准 所有患者的术前、术后影像学资料由两名高年资主治以上医师独立阅片,评估两组患者的脑积水、环池受压、中线移位5 mm、侧脑室受压和颅内低密度灶(提示脑缺血或脑水肿)等情况。ICP控制与数据采集:所有患者通过数据连接线联接I

15、CP监护仪和床旁心电监护仪(BeneView T6,Mindray,中国),实时采集并存储术后ICP数据,在剔除受干扰的异常值后,取每个患者每24小时的ICP平均值,对两组患者术后不同时间点ICP的高低、变化趋势、峰值出现时间等进行分析。以发病后12个月为随访时间点,采取门诊和电话随访方式,评估两组患者的死亡率和改良Rankin量表(mRS)评分情况,其中mRS3分为预后良好,mRS 45分及死亡病例归为预后不良。 1.4统计学方法 采用SPSS 17.0统计学软件进行数据分析,计量资料用均数标准差(xs)表示,两组间比较采用t检验;计数资料采用率表示,组间比较采用Fisher确切概率法检验,

16、以P 2结果 2.1两组患者影像学特征和预后情况的比较 两组患者围术期均未出现再出血。早期手术组中,有15例患者术后CT上显示环池受压、中线移位5 mm、侧脑室受压征象,8例显示颅内低密度灶;延迟手术组中,有17例患者术后CT上显示环池受压、中线移位5 mm、侧脑室受压征象,7例显示颅内低密度灶。两组患者的影像学特征方面比较,差异无统计学意义(P0.05)。随访12个月,早期手术组中,预后良好22例,预后不良4例(其中包括1例死亡);延迟手术组中,预后良好16例,预后不良7例。两组患者的预后情况比较,差异无统计学意义(P0.05)。 2.2两组患者术后不同时间点ICP变化趋势的比较 早期手术组

17、患者的ICP总体平均值高于延迟手术组,差异有统计学意义(P0.05);早期手术组患者术后第5、6天的ICP平均值均高于延迟手术组,差异有统计学意义(P 5Connolly ES Jr,Rabinstein AA,Carhuapoma JR,et al.Guidelines for the management of aneurysmal subarachnoid hemorrhage:a guideline for healthcare professionals from the American Heart Association/American Stroke AssociationJ.

18、Stroke,20XX,43(6):1711-1737. 6Andersen CR,Fitzgerald E,Delaney A,et al.A systematic review of outcome measures employed in aneurysmal subarachnoid hemorrhage (aSAH) clinical researchJ.Neurocrit Care,20XX,30(3):534-541. 7Qian Z,Peng T,Liu A,et al.Early timing of endovascular treatment for aneurysmal

19、subarachnoid hemorrhage achieves improved outcomesJ.Curr Neurovasc Res,20XX,11(1):16-22. 8Park J,Woo H,Kang DH,et al.Formal protocol for emergency treatment of ruptured intracranial aneurysms to reduce in-hospital rebleeding and improve clinical outcomesJ.J Neurosurg,20XX,122(2):383-391. 9Mahaney KB

20、,Todd MM,Bayman EO,et al.Acute postoperative neurological deterioration associated with surgery for ruptured intracranial aneurysm:incidence,predictors,and outcomesJ.J Neurosurg,20XX,116(6):1267-1278. 10Cossu G,Messerer M,Stocchetti N,et al.Intracranial pressure and outcome in critically ill patient

21、s with aneurysmal subarachnoid hemorrhage:a systematic reviewJ.Minerva Anestesiol,20XX,82(6):684-696. 11Zhao DD,Guo ZD,He S,et al.High intracranial pressure may be the initial inducer of elevated plasma D-dimer level after aneurysmal subarachnoid haemorrhageJ.Int J Neurosci,20XX,18:1-6. 12Etminan N,

22、Chang HS,Hackenberg K,et al.Worldwide incidence of aneurysmal subarachnoid hemorrhage according to region,time period,blood pressure,and smoking prevalence in the population:a systematic review and meta-analysisJ.JAMA Neurol,20XX,76(5):588-597. 13Florez WA,Garca-Ballestas E,Deora H,et al.Intracrania

23、l hypertension in patients with aneurysmal subarachnoid hemorrhage:a systematic review and meta-analysisJ.Neurosurg Rev,20XX.Epub ahead of print 14Lv Y,Wang D,Lei J,Clinical observation of the time course of raised intracranial pressure after subarachnoid hemorrhageJ.Neurol Sci,20XX,36(7):1203-1210.

24、 15Darkwah Oppong M,Buffen K,Pierscianek D,et al.Secondary hemorrhagic complications in aneurysmal subarachnoid hemorrhage:when the impact hits hardJ.J Neurosurg,20XX,1:1-8. 16Duan W,Pan Y,Wang C,et al.Risk factors and clinical impact of delayed cerebral ischemia after aneurysmal subarachnoid hemorr

25、hage:analysis from the China National Stroke RegistryJ.Neuroepidemiology,20XX,50(3-4):128-136. 17Olsen MH,Orre M,Leisner ACW,et al.Delayed cerebral ischaemia in patients with aneurysmal subarachnoid haemorrhage:Functional outcome and long-term mortalityJ.Acta Anaesthesiol Scand,20XX,63(9):1191-1199. (收稿日期:20XX-01-14 本文編辑:任秀兰) 6

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